3d illustration

I would like to have made an illustration similar to the one attached. The difference will be that there are 10 separate rooms instead of a big room, a hallway in the middle that goes into the exit room that is currently on the drawing. The shelfs should be stocked with different things that is in a warehouse. The illustration will show 10 small warehouses with one common exit with a security door in front and back (like in a bank). Colours will be specified from our corporate guidelines